Effective dielectric function of TiO2 nanoparticles under laser pumping in the fundamental absorption band

2017 ◽  
Vol 47 (6) ◽  
pp. 547-552 ◽  
Author(s):  
D A Zimnyakov ◽  
S A Yuvchenko
Keyword(s):  
Absorption Band ◽  
Tio2 Nanoparticles ◽  
Dielectric Function ◽  
Fundamental Absorption Band ◽  
Laser Pumping

Dielectric function of TiO2 nanoparticles under laser pumping

2017 ◽  
Author(s):  
D. A. Zimnyakov ◽  
S. A. Yuvchenko ◽  
N. S. Markova
Keyword(s):  
Tio2 Nanoparticles ◽  
Dielectric Function ◽  
Laser Pumping

Fundamental Absorption Band of HD

1974 ◽  
Vol 52 (17) ◽  
pp. 1669-1671 ◽  
Author(s):  
J. Bejar ◽  
H. P. Gush
Keyword(s):  
Dipole Moment ◽  
Absorption Band ◽  
Line Width ◽  
Doppler Effect ◽  
Transition Dipole Moment ◽  
Vibration Band ◽  
Transition Dipole ◽  
Fundamental Absorption Band ◽  
The Doppler Effect

The fundamental rotation–vibration band of HD has been resolved in the gas at 1 atm pressure. The line width appears to be totally due to the Doppler effect and equals 0.026 cm−1. The transition dipole moment has been calculated from the intensities of lines in the R branch: it is found to vary from 4 × 10−5 D for J = 0 to 7 × 10−5 for J = 4.

scholarly journals Pressure Effects on the Optical Properties of NdVO4

Crystals ◽  
2019 ◽  
Vol 9 (5) ◽  
pp. 237 ◽  
Author(s):  
Enrico Bandiello ◽  
Josu Sánchez-Martín ◽  
Daniel Errandonea ◽  
Marco Bettinelli
Keyword(s):  
Phase Transition ◽  
Optical Properties ◽  
Absorption Band ◽  
Phase Change ◽  
Band Gap ◽  
Pressure Dependence ◽  
Structural Changes ◽  
Pressure Effects ◽  
Absorption Bands ◽  
Fundamental Absorption Band

We report on optical spectroscopic measurements in pure NdVO4 crystals at pressures up to 12 GPa. The influence of pressure on the fundamental absorption band gap and Nd3+ absorption bands has been correlated with structural changes in the crystal. The experiments indicate that a phase transition takes place between 4.7 and 5.4 GPa. We have also determined the pressure dependence of the band-gap and discussed the behavior of the Nd3+ absorption lines under compression. Important changes in the optical properties of NdVO4 occur at the phase transition, which, according to Raman measurements, corresponds to a zircon to monazite phase change. In particular, in these conditions a collapse of the band gap occurs, changing the color of the crystal. The changes are not reversible. The results are analyzed in comparison with those deriving from previous studies on NdVO4 and related vanadates.

Investigation of avalanche photocurrent at the edge of fundamental absorption band in Schottky diodes

1985 ◽  
Vol 28 (12) ◽  
pp. 1022-1025
Author(s):  
A. K. Babak ◽  
S. S. Kil'chitskaya ◽  
V. I. Strikha ◽  
V. A. Afanas'ev ◽  
A. V. Ievskii ◽  
...  
Keyword(s):  
Absorption Band ◽  
Schottky Diodes ◽  
Fundamental Absorption Band

scholarly journals Measurement of non-linear optical coefficients of chalcogenide glasses near the fundamental absorption band edge

2018 ◽  
Vol 480 ◽  
pp. 13-17 ◽  
Author(s):  
Elena Romanova ◽  
Yulia Kuzyutkina ◽  
Vladimir Shiryaev ◽  
Nabil Abdel-Moneim ◽  
David Furniss ◽  
...  
Keyword(s):  
Absorption Band ◽  
Chalcogenide Glasses ◽  
Band Edge ◽  
Absorption Band Edge ◽  
Fundamental Absorption Band ◽  
Non Linear ◽  
Linear Optical
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